Add workflow and dependabot

.github/dependabot.yml

@@ -0,0 +1,10 @@
+# Set update schedule for GitHub Actions
+
+version: 2
+updates:
+
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      # Check for updates to GitHub Actions every week
+      interval: "weekly"

.github/workflows/buildsite.yml

@@ -0,0 +1,45 @@
+name: Generate web page
+
+on:
+  push:
+    branches: '*'
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: davorg/perl-app-aphra:latest
+
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v3
+
+    - name: Create pages
+      run: aphra build > aphra.log 2>&1
+
+    - name: Archive aphra logs
+      uses: actions/upload-artifact@v3
+      with:
+        name: aphra.log
+        path: ./aphra.log
+        retention-days: 3
+
+    - name: Update pages artifact
+      uses: actions/upload-pages-artifact@v2
+      with:
+        path: docs/
+
+  deploy:
+    needs: build
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2
+